Heat Transport and Water Permeability during Cracking of the Landfill Compacted Clay Cover
The heat-moisture transport through the compacted clay was observed in laboratory. The hydraulic conductivity of cracked clay under wetting-drying cycles was also investigated. At the early phase of heating, the temperature of soil columns rose fast and moisture decreased dramatically; after this ph...
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2015/685871 |
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| author | Haijun Lu Jianjun Liu Yuan Li Yiqie Dong |
| author_facet | Haijun Lu Jianjun Liu Yuan Li Yiqie Dong |
| author_sort | Haijun Lu |
| collection | DOAJ |
| description | The heat-moisture transport through the compacted clay was observed in laboratory. The hydraulic conductivity of cracked clay under wetting-drying cycles was also investigated. At the early phase of heating, the temperature of soil columns rose fast and moisture decreased dramatically; after this phase, the temperature rose at a lower speed and moisture loss stabilized gradually. The moisture content of compacted clay at 25 cm depth decayed to 0. The crack intensity factor (CIF) of compacted clay was 0.043 and 0.097; the crack depth was about 6.5 cm and 8.2 cm at 50°C and 60°C, respectively. The hydraulic conductivity of compacted clay was within 8.3 × 10−7 to 1.5 × 10−5 cm/s after four wetting-drying cycles. This value was 2~3 orders of magnitude higher than that of uncracked clay. |
| format | Article |
| id | doaj-art-f84805c272c042ffbfdfb829c273d15a |
| institution | Kabale University |
| issn | 2090-9063 2090-9071 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Chemistry |
| spelling | doaj-art-f84805c272c042ffbfdfb829c273d15a2025-02-03T01:30:08ZengWileyJournal of Chemistry2090-90632090-90712015-01-01201510.1155/2015/685871685871Heat Transport and Water Permeability during Cracking of the Landfill Compacted Clay CoverHaijun Lu0Jianjun Liu1Yuan Li2Yiqie Dong3Institute of Poromechanics, Wuhan Polytechnic University, Wuhan 430023, ChinaInstitute of Poromechanics, Wuhan Polytechnic University, Wuhan 430023, ChinaSchool of Geoscience and Technology, Southwest Petroleum University, Chengdu 610500, ChinaInstitute of Poromechanics, Wuhan Polytechnic University, Wuhan 430023, ChinaThe heat-moisture transport through the compacted clay was observed in laboratory. The hydraulic conductivity of cracked clay under wetting-drying cycles was also investigated. At the early phase of heating, the temperature of soil columns rose fast and moisture decreased dramatically; after this phase, the temperature rose at a lower speed and moisture loss stabilized gradually. The moisture content of compacted clay at 25 cm depth decayed to 0. The crack intensity factor (CIF) of compacted clay was 0.043 and 0.097; the crack depth was about 6.5 cm and 8.2 cm at 50°C and 60°C, respectively. The hydraulic conductivity of compacted clay was within 8.3 × 10−7 to 1.5 × 10−5 cm/s after four wetting-drying cycles. This value was 2~3 orders of magnitude higher than that of uncracked clay.http://dx.doi.org/10.1155/2015/685871 |
| spellingShingle | Haijun Lu Jianjun Liu Yuan Li Yiqie Dong Heat Transport and Water Permeability during Cracking of the Landfill Compacted Clay Cover Journal of Chemistry |
| title | Heat Transport and Water Permeability during Cracking of the Landfill Compacted Clay Cover |
| title_full | Heat Transport and Water Permeability during Cracking of the Landfill Compacted Clay Cover |
| title_fullStr | Heat Transport and Water Permeability during Cracking of the Landfill Compacted Clay Cover |
| title_full_unstemmed | Heat Transport and Water Permeability during Cracking of the Landfill Compacted Clay Cover |
| title_short | Heat Transport and Water Permeability during Cracking of the Landfill Compacted Clay Cover |
| title_sort | heat transport and water permeability during cracking of the landfill compacted clay cover |
| url | http://dx.doi.org/10.1155/2015/685871 |
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